Hi, my use case for Ceph is serving a central backup storage. This means I will backup multiple databases in Ceph storage cluster. This is my question: What is the best practice for creating pools & images? Should I create multiple pools, means one pool per database? Or should I create a single pool "backup" and use namespace when writing data in the pool? This is the security demand that should be considered: DB-owner A can only modify the files that belong to A; other files (owned by B, C or D) are accessible for A. And there's another issue: How can I identify a backup created by client A that I want to restore on another client Z? I mean typically client A would write a backup file identified by the filename. Would it be possible on client Z to identify this backup file by filename? If yes, how? THX _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com